EP 0874004 B1 20030702 - Improved chelating resins
Title (en)
Improved chelating resins
Title (de)
Verbesserte chelatbildende Harze
Title (fr)
Résines chélatantes améliorées
Publication
Application
Priority
US 84474097 A 19970421
Abstract (en)
[origin: US5804606A] The present invention is concerned with improved chelating resins. More particularly, the present invention is concerned with macroporous, aminoalkylphosphonic or iminodiacetic acid chelating resins having improved stability and capacity in the removal of cations (e.g. calcium, magnesium, barium and strontium) from brines and in the removal of metals (e.g. nickel, copper and zinc) from waste streams.
IPC 1-7
IPC 8 full level
B01J 45/00 (2006.01); C08F 6/24 (2006.01); C08F 8/00 (2006.01); C08F 8/36 (2006.01); C08F 212/08 (2006.01); C02F 1/42 (2006.01); C02F 5/00 (2006.01)
CPC (source: EP KR US)
B01J 45/00 (2013.01 - EP KR US); C02F 1/42 (2013.01 - KR); C08F 8/02 (2013.01 - EP US); C08F 8/12 (2013.01 - EP US); C08F 8/24 (2013.01 - EP US); C08F 8/32 (2013.01 - EP KR US); C08F 8/40 (2013.01 - EP US); C08F 212/08 (2013.01 - EP KR US); C08F 212/36 (2013.01 - KR); C02F 1/42 (2013.01 - EP US); C02F 5/00 (2013.01 - EP US); C02F 2101/20 (2013.01 - EP US); C08F 2800/20 (2013.01 - EP US); C08F 2810/20 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
US 5804606 A 19980908; CA 2234880 A1 19981021; CN 1143876 C 20040331; CN 1197085 A 19981028; DE 69815932 D1 20030807; DE 69815932 T2 20040519; EP 0874004 A1 19981028; EP 0874004 B1 20030702; ID 20184 A 19981022; JP 4150442 B2 20080917; JP H10296095 A 19981110; KR 100297460 B1 20010807; KR 19980081487 A 19981125; TW 454027 B 20010911
DOCDB simple family (application)
US 84474097 A 19970421; CA 2234880 A 19980416; CN 98106680 A 19980420; DE 69815932 T 19980416; EP 98302939 A 19980416; ID 980577 A 19980417; JP 10753398 A 19980417; KR 19980013705 A 19980417; TW 87103041 A 19980303